From Hyper Parfait:

In Hades, the world where souls are dealt with, there are special individuals known as Enma, who have the ability to judge the lost souls. The Enma can decide whether souls go to heaven or hell, and are equipped with their own special weapon, known as a Judgement. When an evil soul causes a disturbance in Hades, Kouichiro’s powers as an Enma are revealed and he becomes the first person in twenty years invited to take the Enma exam. After having barely passed the exam, and been partnered with Chizuru, who is rumoured to be “the demon of the intelligence department”, just what will happen to Kouichiro next?